Camtasia is an audio/video editing software that will allow you to capture your computer screen, as well as a video of you.  Camtasia can be very useful for creating instructional videos and resources for your courses.  You can record and edit your PowerPoint presentations, create quick how-to videos for your students, add quizzes to your videos, or create an introduction video of yourself for your students.

Camtasia Studio 8:

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Camtasia Version 2 for Mac:

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